From: phk <phk@d4fa192b-c00b-0410-8231-f00ffab90ce4>
Date: Tue, 22 Jul 2008 14:40:33 +0000 (+0000)
Subject: Add a counter for shmlog wraparounds.
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0aca33d52369295b2811eaec0c6bf292cb98a9b3;p=varnish

Add a counter for shmlog wraparounds.



git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@2993 d4fa192b-c00b-0410-8231-f00ffab90ce4
---

diff --git a/varnish-cache/bin/varnishd/shmlog.c b/varnish-cache/bin/varnishd/shmlog.c
index c2d6cb66..47a99247 100644
--- a/varnish-cache/bin/varnishd/shmlog.c
+++ b/varnish-cache/bin/varnishd/shmlog.c
@@ -74,6 +74,7 @@ vsl_wrap(void)
 	*logstart = SLT_ENDMARKER;
 	logstart[loghead->ptr] = SLT_WRAPMARKER;
 	loghead->ptr = 0;
+	VSL_stats->shm_cycles++;
 }
 
 static void
diff --git a/varnish-cache/include/stat_field.h b/varnish-cache/include/stat_field.h
index d3ea7e65..217d2305 100644
--- a/varnish-cache/include/stat_field.h
+++ b/varnish-cache/include/stat_field.h
@@ -92,6 +92,7 @@ MAC_STAT(shm_records,		uint64_t, 'a', "SHM records")
 MAC_STAT(shm_writes,		uint64_t, 'a', "SHM writes")
 MAC_STAT(shm_flushes,		uint64_t, 'a', "SHM flushes due to overflow")
 MAC_STAT(shm_cont,		uint64_t, 'a', "SHM MTX contention")
+MAC_STAT(shm_cycles,		uint64_t, 'a', "SHM cycles through buffer")
 
 MAC_STAT(sm_nreq,		uint64_t, 'a', "allocator requests")
 MAC_STAT(sm_nobj,		uint64_t, 'i', "outstanding allocations")